MAX3222E_06 datasheet(6/26 Pages) MAXIM | ±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V, Up to 1Mbps, True RS-232 Transceivers

6 page

±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V,

Up to 1Mbps, True RS-232 Transceivers

_______________________________________________________________________________________

Typical Operating Characteristics (continued)

(VCC = +3.3V, 250kbps data rate, 0.1µF capacitors, all transmitters loaded with 3k

Ω and CL, TA = +25°C, unless otherwise noted.)

100

MAX3237E

TRANSMITTER SKEW vs. LOAD CAPACITANCE

(MBAUD = VCC)

LOAD CAPACITANCE (pF)

1000

1500

500

2000

|tPLH - tPHL|

1 TRANSMITTER AT 500kbps

4 TRANSMITTERS AT 1/16 DATA RATE

ALL TRANSMITTERS LOADED

WITH 3k

Ω + CL

-6

-2

-4

-3

-5

-1

2.0

3.0

3.5

2.5

4.0

4.5

5.0

SUPPLY VOLTAGE (V)

VOUT-

VOUT+

1 TRANSMITTER AT 250kbps

4 TRANSMITTERS AT 15.6kbps

ALL TRANSMITTERS LOADED

WITH 3k

Ω +1000pF

MAX3237E

TRANSMITTER OUTPUT VOLTAGE

vs. SUPPLY VOLTAGE (MBAUD = GND)

2.0

MAX3237E SUPPLY CURRENT

vs. SUPPLY VOLTAGE (MBAUD = GND)

SUPPLY VOLTAGE (V)

3.0

3.5

2.5

4.0

4.5

5.0

1 TRANSMITTER AT 250kbps

4 TRANSMITTERS AT 15.6kbps

ALL TRANSMITTERS LOADED

WITH 3k

Ω AND 1000pF

MAX3246E

TRANSMITTER OUTPUT VOLTAGE

vs. LOAD CAPACITANCE

LOAD CAPACITANCE (pF)

4000

3000

1000

2000

-5

-4

-3

-2

-1

-6

5000

1 TRANSMITTER AT 250kbps

2 TRANSMITTERS AT 15.6kbps

VOUT-

VOUT+

MAX3246E

SLEW RATE vs. LOAD CAPACITANCE

LOAD CAPACITANCE (pF)

2000

3000

1000

4000

5000

SR+

SR-

MAX3246E

OPERATING SUPPLY CURRENT

vs. LOAD CAPACITANCE

LOAD CAPACITANCE (pF)

1000

2000

3000

4000

5000

1 TRANSMITTER AT 250kbps

2 TRANSMITTERS AT 15.6kbps

250kbps

120kbps

20kbps

MAX3237E

SLEW RATE vs. LOAD CAPACITANCE

(MBAUD = GND)

LOAD CAPACITANCE (pF)

1000

1500

500

2000

2500

3000

SR+

SR-

1 TRANSMITTER AT 250kbps

4 TRANSMITTERS AT 15.6kbps

ALL TRANSMITTERS LOADED

WITH 3k

Ω + CL

MAX3237E

SLEW RATE vs. LOAD CAPACITANCE

(MBAUD = VCC)

LOAD CAPACITANCE (pF)

500

1000

1500

2000

-SLEW, 1Mbps

+SLEW, 1Mbps

1 TRANSMITTER AT FULL DATA RATE

4 TRANSMITTERS AT 1/16 DATA RATE

Ω + CL LOAD EACH OUTPUT

-SLEW, 2Mbps

+SLEW, 2Mbps

MAX3237E

SUPPLY CURRENT vs. LOAD CAPACITANCE

WHEN TRANSMITTING DATA (MBAUD = GND)

LOAD CAPACITANCE (pF)

1000

1500

500

2000

2500

3000

250kbps

120kbps

20kbps

1 TRANSMITTER AT 20kbps, 120kbps, 250kbps

4 TRANSMITTERS AT 15.6kbps

ALL TRANSMITTERS LOADED

WITH 3k

Ω + CL

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